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The Design and Evaluation of An Information Sharing
System for Human Networks
ABSTRACT:
With fast-growing consumer demands and rapidly-developing mobile
technologies, portable mobile devices are becoming a necessity of our daily lives.
However, existing mobile devices rely on the wireless infrastructure to access
Internet services provided by central application providers. This architecture is
inefficient in many situations and also does not utilize abundant interdevice
communication opportunities in many scenarios. This paper proposes the human
network (HUNET), a network architecture that enables information sharing
between mobile devices through direct interdevice communication. We design B-SUB,
an interest-driven information sharing system for HUNETs. In B-SUB,
content and user interests are described by tags, which are human-readable strings
that are designated by users. An experiment is performed to demonstrate the
effectiveness of this tag-based content description method. To facilitate efficient
data dissemination, we invent the Temporal Counting Bloom filter (TCBF) to
encode tags, which also reduces the overhead of content routing. Comprehensive
theoretical analyses on the parameter tuning of B-SUB are presented and verify B-GLOBALSOFT

2. SUB’s ability to work effic iently under various network conditions. We then
extend B-SUB’s routing scheme to provide a stronger privacy guarantee. Extensive
real-world trace-driven simulations are performed to evaluate the performance of
BSUB, and the results demonstrate its efficiency and usefulness.
EXISTING SYSTEM:
A new architecture of networking portable wireless devices has emerged, which is
called the delay tolerant networks . DTNs adopt a “store-carry-and-forward”
model, which significantly expands the communication capability of mobile
device. Driven by the new application demands and the limitations of the existing
architecture, we envision a new type of dynamic networking service called human
networks (HUNETs). Physically, a HUNET is composed of human-carried mobile
devices, which have the same structure as DTNs. These devices use short-range
wireless communication technologies, such as WiFi or BlueTooth, to communicate
with each other. Functionally, HUNETs enable information sharing between users
in a completely decentralized manner without the aid of an wireless
communication infrastructure. A high-level illustration of this architecture is
presented . The figure shows a HUNET composed of four users, each of which
carries a mobile device. Users share information they are interested in with nearby
peers through direct interdevice wireless communication.We present B-SUB, an
interest-driven information sharing system for HUNETs, which stands for the
bloom-filter-based publish/SUBscribe. B-SUB is designed for small to medium
sized networks composed of dozens of devices restricted in a limited physical area
where interdevice communication opportunities are abundant.B-SUB employs

3. contentbased networking to achieve infrastructureless communication. B-SUB is
much more efficient than traditional content-based publish/subscribe
DISADVANTAGES OF EXISTING SYSTEM:
1. Mobile devices have weak processors and are powered by batteries. Their
computational capability is rather limited.
2. TCBF has false positives in their queries, which causes useless messages to be
forwarded to nodes that are not really interested in their content.
PROPOSED SYSTEM:
 We propose HUNET, a novel network architecture that facilitates efficient
information sharing between portable mobile devices. We design B-SUB, an
interest-driven information sharing system for HUNETs, a content-based
publish/subscribe that achieves infrastructure-less communication between
mobile devices.
 We invent the TCBF, an extension to the counting Bloom filter.
 We conduct extensive theoretical analyses and real world trace driven
simulations to evaluate the performance of B-SUB.
ADVANTAGES OF PROPOSED SYSTEM:
1. This provides stronger privacy guarantee.
2. Gives better protect user privacy.

4. SYSTEM REQUIREMENTS:
HARDWARE REQUIREMENTS:
 System : Pentium IV 2.4 GHz.
 Hard Disk : 40 GB.
 Floppy Drive : 1.44 Mb.
 Monitor : 15 VGA Colour.
 Mouse : Logitech.
 Ram : 512 Mb.
SOFTWARE REQUIREMENTS:
 Operating system : Windows XP/7.
 Coding Language : JAVA/J2EE
 IDE : Netbeans 7.4
 Database : MYSQL
REFERENCE:
Yaxiong Zhao, and Jie Wu, “The Design and Evaluation of An Information
Sharing System for Human Networks” IEEE TRANSACTIONS ON
PARALLEL AND DISTRIBUTED SYSTEMS, VOL. 25, NO. 3, MARCH
2014.